摘要:
A central communication unit 110 and a terminal communication unit 120 are provided with a priority order number storing unit 115 and fifo type storing units, and perform communication according to the priority order of data communication stored in the priority order number storing unit 115. At this time the priority order and the layout of respective devices of control objects are optimized and set through a software processing in a host computer according to the communication cycle and response performance required for the devices of control objects, thereby, the plurality of devices of control objects requiring different communication cycles and response performances can be connected on one network.
摘要:
A network I/O system includes a central communication unit having a communication port and a plurality of terminal communication units each having an upstream communication port and a plurality of downstream ports wherein the central communication unit transmits, to the terminal communication units, routing data of the central communication unit to the terminal communication units for setting identification numbers in the terminal communication units and data of the identification number of the terminal communication units, the terminal communication units refer to the data to transmit to the downstream communication port and set the identification number in a targeted terminal communication unit, and a communication port number of the downstream communication port is appended to routing recognition data to be transmitted from the terminal communication units to the central communication unit at a time of passing through the terminal communication units, thereby recognizing a network configuration.
摘要:
The invention is directed to performing electronic component mounting operations by the suction nozzles of the mounting heads in each of the plurality of the rotary tables independently, moving each of the positioning tables for positioning a printed board in a component mounting position independently, and performing the electronic component mounting operation on the plurality of the printed boards independently. A component feeding device moves a plurality of component feeding tables having a plurality of component feeding units in an arraying direction thereof respectively and independently. Mounting heads having a plurality of suction nozzles for picking up electronic components from the component feeding devices respectively are provided at predetermined intervals corresponding to intermittent pitches on an outer circumference of two rotary tables intermittently rotating. Therefore, the suction nozzle of the mounting head of each of the rotary tables picks up the electronic component fed to a component pickup position in each of the component feeding units set on each of the component feeding tables, and mounts the component on the printed board on the corresponding XY table.
摘要:
Apparatus for feeding electronic components comprises a slide base, a plurality of tape cassettes mounted on the slide base, a linear motor 14, and a control unit for the motor. The control unit includes a motor driver 61, a memory device 66, and a control device 67 which controls the motor driver 61 using data stored in the memory device 66. The control device 67 adjusts the data for controlling the motor according to the load weight of the slide base. The data is used for properly moving the slide base carrying a plurality of tape cassettes to a position for feeding the components.
摘要:
The invention is directed to increased stabilization of a pickup operation by reducing a reaction against disturbance by reducing a feedback value when a pickup rate is improved. A positional shifting amount of an electronic component on a suction nozzle before the electronic component is mounted on a printed board is stored in a RAM each time the component is picked up at a component feeding unit until a pickup count number reaches a predetermined pickup number, and a CPU calculates an average of the positional shifting amounts. When the pickup count number reaches the predetermined pickup number, the CPU obtains a temporary coefficient by adding an initial value to a value obtained by multiplying a negative coefficient by the pickup count number, and calculates a feedback value by multiplying the temporary coefficient by the average. The calculated feedback value is added to an offset value of a component pickup position to modify the offset value, and uses the offset value in the next pickup operation at the component feeding unit.
摘要:
A central communication unit 110 and a terminal communication unit 120 are provided with a priority order number storing unit 115 and fifo type storing units, and perform communication according to the priority order of data communication stored in the priority order number storing unit 115. At this time the priority order and the layout of respective devices of control objects are optimized and set through a software processing in a host computer according to the communication cycle and response performance required for the devices of control objects, thereby, the plurality of devices of control objects requiring different communication cycles and response performances can be connected on one network.
摘要:
A network I/O system includes a central communication unit having a communication port and a plurality of terminal communication units each having an upstream communication port and a plurality of downstream ports wherein the central communication unit transmits, to the terminal communication units, routing data of the central communication unit to the terminal communication units for setting identification numbers in the terminal communication units and data of the identification number of the terminal communication units, the terminal communication units refer to the data to transmit to the downstream communication port and set the identification number in a targeted terminal communication unit, and a communication port number of the downstream communication port is appended to routing recognition data to be transmitted from the terminal communication units to the central communication unit at a time of passing through the terminal communication units, thereby recognizing a network configuration.
摘要:
The invention is directed to reduction of torque by reduction of an outside diameter of a mounting head. A cylindrical cam rotation motor is provided under a nozzle rotation motor. A first rotation axis member as a rotor of the nozzle rotation motor is provided along an axis line of a nozzle holder and penetrates into the nozzle rotation motor and the cylindrical cam rotation motor. A second rotation axis member as a rotor of the cylindrical cam rotation motor is provided along an axis line of a cylindrical cam member and penetrates into the cylindrical cam rotation motor. A suction nozzle to be used protrudes from a lower end surface of the nozzle holder at a protrusion position.
摘要:
There are provided a nozzle clogging detection device for an electronic component-mounting apparatus, which has a simple construction and is capable of accurately detecting clogging of a vacuum nozzle and erroneous mounting of a vacuum nozzle different in diameter, and a nozzle clogging detection method therefor. A flow meter is arranged across a vacuum passage communicating between a vacuum pump and the nozzle hole of the vacuum nozzle, for measuring an actual flow rate of air drawn in through the nozzle hole. Clogging of the nozzle hole and erroneous mounting of the vacuum nozzle is detected by comparing the actual flow rate measured by the flow meter with a design flow rate of air to be drawn through the nozzle hole, the design flow rate of air being stored in advance.
摘要:
The invention is directed to increased stabilization of a pickup operation by reducing a reaction against disturbance by reducing a feedback value when a pickup rate is improved. A positional shifting amount of an electronic component on a suction nozzle before the electronic component is mounted on a printed board is stored in a RAM each time the component is picked up at a component feeding unit until a pickup count number reaches a predetermined pickup number, and a CPU calculates an average of the positional shifting amounts. When the pickup count number reaches the predetermined pickup number, the CPU obtains a temporary coefficient by adding an initial value to a value obtained by multiplying a negative coefficient by the pickup count number, and calculates a feedback value by multiplying the temporary coefficient by the average. The calculated feedback value is added to an offset value of a component pickup position to modify the offset value, and uses the offset value in the next pickup operation at the component feeding unit.